Product Overview
The Qualitrol STB-100-2CS-51872 is a state-of-the-art, self-regenerating smart dehydrating breather engineered to protect oil-filled transformers and load tap changer (LTC) conservators from atmospheric moisture ingress. By continually monitoring and learning the transformer’s breathing patterns, this automated system regenerates its silica gel desiccant exactly when needed, preventing moisture from degrading the liquid insulation and dielectric paper. Designed for demanding high-voltage applications, this unit eliminates the need for routine desiccant replacements, drastically reducing maintenance downtime and extending the lifecycle of critical grid station equipment.
Key Features & Specifications:
Automated Self-Regeneration: Internal heaters automatically dry out the accumulated moisture based on user-configurable time intervals (5, 10, 20, or 40 days) or relative humidity (RH) thresholds, eliminating manual maintenance trips.
2 kg Desiccant Capacity: Optimally sized for medium to large transformers, supporting oil capacities up to 68,000 liters (18,000 gallons).
Integrated Solenoid Valve: Automatically seals the air path during the heating and regeneration cycle to ensure no external moisture is accidentally drawn into the transformer tank.
Remote Monitoring & SCADA Integration: Equipped with versatile communication protocols, including RS-485 MODBUS, 4-20 mA analog output (for continuous RH tracking), and a local USB port for data logging.
Local Visual Diagnostics: High-visibility, color-coded LED indicators (Green, Amber, Red) on the control box provide instant, at-a-glance updates on operational status, regeneration cycles, and active alarms.
Color-Changing Silica Gel: Provides a physical, secondary visual confirmation of the breather’s moisture absorption and current regeneration status.
Rugged Industrial Enclosure: IP55-rated construction featuring a heavy-duty aluminum shell and polycarbonate tube, designed to withstand electrical environment vibrations and harsh climate conditions.
The Qualitrol STB-100-2CS-51872 is a silica gel breather manufactured in Sweden for power transformer conservator tanks. It filters and dehumidifies incoming air during transformer oil thermal cycling to prevent moisture ingress into the transformer. The unit features dual-chamber silica gel cartridges and an oil seal cup for enhanced moisture protection.
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